Ergonomic chair convenient for switching sitting postures

Abstract

The utility model provides an ergonomic chair convenient to switch sitting postures, which comprises a support frame, one end of the support frame is fixedly connected with an air rod, one end of the air rod is rotatably connected with a rotary sleeve rod, one end of the rotary sleeve rod is fixedly connected with a leg support supporting rod, one end of the leg support supporting rod is fixedly connected with a rotary leg support, and the movable end of the air rod is fixedly connected with a base. A cushion is fixedly connected above the base, one end of the base is movably connected with an angle adjusting handle and a lifting pressing rod, one end of the base is rotatably connected with a backrest supporting rod, and one end of the base is fixedly connected with a backrest; a user can place feet or knees on the rotary leg support after sitting on the cushion for a long time, sitting in postures such as squatting is facilitated, the sitting comfort can be effectively improved after the postures are switched, meanwhile, the rotary leg support can be rotated to the side face, the user can place the feet or the knees on the rotary leg support on one side, and the user can conveniently sit on the rotary leg support. And the sitting posture can be switched at more angles, so that the flexibility of switching the sitting posture is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ergonomic chairs, in particular to an ergonomic chair which is convenient for switching sitting postures. Background Art

[0002] Ergonomic chairs mainly refer to chairs that can better fit and support the head, neck, waist, hands, buttocks and other parts of a person when sitting. This kind of chair can reduce the pressure of the above parts and make the person feel more comfortable. Therefore, the design of ergonomic chairs is generally more natural and humanized. It is suitable for people of different body shapes. It is a chair suitable for long-term computer use and long-term sitting.

[0003] After searching, the Chinese patent publication number CN219720199U discloses an ergonomic leisure mesh chair that is easy to adjust, including a support column, a fixed foot is fixedly installed on the outer side of the support column, and a pulley is arranged at the lower end of the fixed foot, a hydraulic cylinder is fixedly installed on the inner middle side of the support column, and a movable plate is installed on the upper end of the hydraulic cylinder, the upper end of the movable plate is connected to a seat, and an armrest mechanism is connected to the outer side of the lower end of the seat, and the armrest mechanism includes an armrest body, a connecting plate, a spring and a limit block; a fixed plate, which is fixedly installed on the lower left side of the seat.

[0004] In view of the problem that the above technologies lack a method for people to raise their legs and adjust their sitting posture to squatting or other postures after sitting for a long time, thereby changing their sitting posture to improve riding comfort; therefore, an ergonomic chair that is easy to switch sitting postures is proposed. Utility Model Content

[0005] In view of this, the embodiments of the present invention hope to provide an ergonomic chair that is easy to switch sitting postures, so as to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the embodiment of the utility model is achieved as follows: it includes a support frame, one end of the support frame is fixedly connected to a gas rod, one end of the gas rod is rotatably connected to a rotating sleeve rod, one end of the rotating sleeve rod is fixedly connected to a leg support rod, and one end of the leg support rod is fixedly connected to a rotating leg support.

[0007] In some embodiments, the movable end of the gas rod is fixedly connected to a base, and a seat cushion is fixedly connected above the base.

[0008] In some embodiments, one end of the base is movably connected to an angle adjustment handle and a lifting pressure rod.

[0009] In some embodiments, one end of the base is rotatably connected to a backrest support rod, and one end of the base is fixedly connected to the backrest.

[0010] In some embodiments, one end of the base is rotatably connected to a rotating shaft rod, both ends of the rotating shaft rod are fixedly connected to hip and leg support rods, and one end of the hip and leg support rod is fixedly connected to a hip and leg support pad.

[0011] In some embodiments, one end of the base is rotatably connected to an angle adjustment rod, one end of the angle adjustment rod is fixedly connected to a driving gear, and one end of the driving gear is meshed with a crown gear.

[0012] In some embodiments, one end of the crown gear is fixedly connected to a threaded sleeve rod, one end of the threaded sleeve rod is threadedly connected to a lifting screw rod, one end of the threaded sleeve rod is rotatably connected to the top of the base, one end of the lifting screw rod is fixedly connected to a limiting slide rod, one end of the limiting slide rod is slidably connected to the base, one end of the lifting screw rod is rotatably connected to a ball, one end of the ball roller is movably connected to an adjustment support plate, one end of the adjustment support plate is fixedly connected to the bottom of the seat cushion, and the other end of the adjustment support plate is rotatably connected to the base.

[0013] In some embodiments, one end of the backrest support rod is slidably connected to a lifting rod, one end of the lifting rod is fixedly connected to a headrest, and one end of the positioning screw is threadedly connected to the backrest support rod.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. An ergonomic chair that is easy to switch sitting postures. After the user sits on the seat cushion for a long time, the user can place the feet or knees on the rotating leg rest, which is convenient for sitting in a squatting posture. After switching postures, the riding comfort can be effectively improved. At the same time, the rotating leg rest can be rotated to the side, allowing the user to place the feet or knees on the rotating leg rest on one side, and the user can sit at more angles, which further improves the flexibility when switching sitting postures.

[0016] 2. An ergonomic chair that is easy to switch sitting positions. The hip and leg support rods support the inner thighs of the user to prevent the user's body from sliding down when squatting, kneeling on the rotating leg rest, or lying at a large angle, which affects the user experience.

[0017] 3. An ergonomic chair that is easy to switch sitting postures. The seat cushion can be switched between horizontal and tilted by turning the angle adjustment rod. Using different angles in different situations makes sitting more comfortable and easy to switch sitting postures.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is the main structural diagram of the utility model;

[0021] Figure 2 It is a rear view structural diagram of the utility model;

[0022] Figure 3 It is a rear upper partial structural diagram of the utility model;

[0023] Figure 4 This is a diagram of the installation structure of the hip and leg support pad of the utility model;

[0024] Figure 5 This is a structural diagram of the support screw installation of the utility model.

[0025] Reference numerals:

[0026] 1. Support frame; 2. Gas rod; 3. Rotating sleeve rod; 4. Leg support rod; 5. Rotating leg support; 6. Base; 7. Backrest support rod; 8. Cushion; 9. Backrest; 10. Lifting and lowering pressure rod; 11. Angle adjustment handle; 12. Positioning screw; 13. Lifting and lowering rod; 14. Headrest; 15. Adjusting support plate; 16. Angle adjustment rod; 17. Hip and leg support pad; 18. Hip and leg support rod; 19. Rotating shaft rod; 20. Crown gear; 21. Drive gear; 22. Threaded sleeve rod; 23. Lifting and lowering screw; 24. Ball; 25. Limiting slide rod. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0028] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1:

[0030] like Figure 1-5As shown, an ergonomic chair that is convenient for switching sitting postures comprises a support frame 1, one end of the support frame 1 is fixedly connected to a gas rod 2, one end of the gas rod 2 is rotatably connected to a rotating sleeve rod 3, one end of the rotating sleeve rod 3 is fixedly connected to a leg support rod 4, one end of the leg support rod 4 is fixedly connected to a rotating leg support 5, the movable end of the gas rod 2 is fixedly connected to a base 6, the upper part of the base 6 is fixedly connected to a seat cushion 8, and one end of the base 6 is movably connected to an angle adjustment handle 11 and a lifting and lowering pressure rod 10;

[0031] The size of the swivel leg rest 5 is larger than the seat cushion 8, so that the user can place the feet or knees on the swivel leg rest 5 after sitting on the seat cushion 8 for a long time, which is convenient for sitting in a squatting posture, etc., and the riding comfort can be effectively improved after switching postures. At the same time, the swivel leg rest 5 can be rotated to the side, so that the user can place the feet or knees on the swivel leg rest 5 on one side, and can sit at more angles, further improving the flexibility when switching sitting postures; and the seat cushion 8 can be tilted at 10-20° when sitting, which can make the user's hip posture more natural and comfortable when squatting or other methods are used.

[0032] In this embodiment, one end of the base 6 is movably connected to an angle adjustment handle 11 and a lifting and lowering pressure rod 10, one end of the base 6 is rotatably connected to a backrest support rod 7, and one end of the base 6 is fixedly connected to a backrest 9;

[0033] The lifting and lowering pressure rod 10 can adjust the height of the gas rod 2 to facilitate the adjustment of the riding height, and the angle adjustment handle 11 can adjust the use angle of the backrest 9.

[0034] In this embodiment: the size of the rotating leg support 5 is larger than the seat cushion 8, so that the user can place his feet or knees on the rotating leg support 5 after sitting on the seat cushion 8 for a long time, which is convenient for sitting in a squatting posture, etc., and the riding comfort can be effectively improved after switching postures. At the same time, the rotating leg support 5 can be rotated to the side, so that the user can place his feet or knees on the rotating leg support 5 on one side, and can sit at more angles, further improving the flexibility when switching sitting postures; and the seat cushion 8 can be tilted at 10-20° for sitting, which can make the user's hip posture more natural and comfortable when sitting in a squatting posture or other methods;

[0035] The lifting and lowering pressure rod 10 can adjust the height of the gas rod 2 to facilitate the adjustment of the riding height, and the angle adjustment handle 11 can adjust the use angle of the backrest 9.

[0036] Embodiment 2:

[0037] An ergonomic chair that facilitates switching of sitting postures. This embodiment makes the following improvements on the basis of embodiment 1: Figure 1-5 As shown,

[0038] In this embodiment, one end of the base 6 is rotatably connected to a rotating shaft 19, both ends of the rotating shaft 19 are fixedly connected to hip and leg support rods 18, and one end of the hip and leg support rod 18 is fixedly connected to a hip and leg support pad 17;

[0039] The hip-leg support rod 18 can rotate the hip-leg support pad 17 upward, so that when the user squats, kneels on the rotating leg support or lies at a large angle, the hip-leg support rod 18 can support the inner thighs of the user to prevent the user from sliding down and affecting the user experience.

[0040] In this embodiment, one end of the base 6 is rotatably connected to an angle adjustment rod 16, one end of the angle adjustment rod 16 is fixedly connected to a driving gear 21, and one end of the driving gear 21 is meshed with a crown gear 20;

[0041] One end of the crown gear 20 is fixedly connected to a threaded sleeve rod 22, one end of the threaded sleeve rod 22 is threadedly connected to a lifting screw rod 23, one end of the threaded sleeve rod 22 is rotatably connected to the top of the base 6, one end of the lifting screw rod 23 is fixedly connected to a limited position slide rod 25, one end of the limited position slide rod 25 is slidably connected to the base 6, one end of the lifting screw 23 is rotatably connected to a ball 24, one end of the ball 24 is movably connected to an adjustment support plate 15, one end of the adjustment support plate 15 is fixedly connected to the bottom of the seat cushion 8, and the other end of the adjustment support plate 15 is rotatably connected to the base 6;

[0042] Rotating the angle adjustment rod 16 can move the lifting screw 23 upward, lift the adjustment support plate 15 through the ball 24, and then switch the seat cushion 8 between horizontal and inclined. It is more comfortable to sit at different angles in different situations and it is convenient to switch the sitting posture.

[0043] In this embodiment, one end of the backrest support rod 7 is slidably connected to a lifting rod 13, one end of the lifting rod 13 is fixedly connected to a headrest 14, and one end of the positioning screw 12 is threadedly connected to the backrest support rod 7;

[0044] The position of the headrest 14 can be adjusted by pulling out the lifting rod 13 to facilitate the placement of the head and improve the comfort of lying down. The positioning screw 12 can be turned to insert one end into the groove on one side of the lifting rod 13 to facilitate the positioning of the lifting rod 13.

[0045] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An ergonomic chair that facilitates switching of sitting postures, comprising a support frame (1), characterized in that: One end of the support frame (1) is fixedly connected to a gas rod (2), one end of the gas rod (2) is rotatably connected to a rotating sleeve rod (3), one end of the rotating sleeve rod (3) is fixedly connected to a leg support rod (4), and one end of the leg support rod (4) is fixedly connected to a rotating leg support (5).

2. The ergonomic chair for facilitating switching of sitting posture according to claim 1, characterized in that: The movable end of the gas rod (2) is fixedly connected to a base (6), and a seat cushion (8) is fixedly connected above the base (6).

3. The ergonomic chair for facilitating switching of sitting posture according to claim 2, characterized in that: One end of the base (6) is movably connected with an angle adjustment handle (11) and a lifting and lowering pressure rod (10).

4. The ergonomic chair for facilitating switching of sitting posture according to claim 3, characterized in that: One end of the base (6) is rotatably connected to a backrest support rod (7), and one end of the base (6) is fixedly connected to a backrest (9).

5. The ergonomic chair for facilitating switching of sitting posture according to claim 4, characterized in that: One end of the base (6) is rotatably connected to a rotating shaft (19), both ends of the rotating shaft (19) are fixedly connected to hip and leg support rods (18), and one end of the hip and leg support rod (18) is fixedly connected to a hip and leg support pad (17).

6. The ergonomic chair for facilitating switching of sitting posture according to claim 5, characterized in that: One end of the base (6) is rotatably connected to an angle adjustment rod (16), one end of the angle adjustment rod (16) is fixedly connected to a driving gear (21), and one end of the driving gear (21) is meshed with a crown gear (20).

7. The ergonomic chair for facilitating switching of sitting posture according to claim 6, characterized in that: One end of the crown gear (20) is fixedly connected to a threaded sleeve rod (22), one end of the threaded sleeve rod (22) is threadedly connected to a lifting screw rod (23), one end of the threaded sleeve rod (22) is rotatably connected to the top of the base (6), one end of the lifting screw rod (23) is fixedly connected to a limit slide rod (25), one end of the limit slide rod (25) is slidably connected to the base (6), one end of the lifting screw rod (23) is rotatably connected to a ball (24), one end of the ball (24) is movably connected to an adjustment support plate (15), one end of the adjustment support plate (15) is fixedly connected to the bottom of the seat cushion (8), and the other end of the adjustment support plate (15) is rotatably connected to the base (6).

8. The ergonomic chair for easy switching of sitting posture according to claim 4, characterized in that: One end of the backrest support rod (7) is slidably connected to a lifting rod (13), one end of the lifting rod (13) is fixedly connected to a headrest (14), and one end of the positioning screw (12) is threadedly connected to the backrest support rod (7).

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